42results about How to "Wide range of analysis" patented technology

The embodiment of the invention provides a malicious order identification method and device and an electronic device. The method comprises the steps of obtaining data of a to-be-identified order behavior; and analyzing the data of the to-be-identified order behavior through utilization of an analysis model and obtaining a malicious score of the to-be-identified order behavior, wherein the analysis model is obtained by carrying out model training according to the data of a preset order behavior; and judging whether the to-be-identified order behavior is a malicious order behavior or not according to the malicious score. Through application of the embodiment of the invention, the data of the to-be-identified order behavior is analyzed through utilization of the analysis model, so a malicious order identification success rate can be improved, and a malicious order identification range can be expanded.

The invention is a high performance liquid chromatography of determining diversofiform organic acid in the fruit simultaneity. It adopts liquid chromatograph including ultraviolet detector and chromatographic column of silica gel bonding in opposition. It takes organic solvent mobile phase A and aqueous solution mobile phase B of finite concentration pH value as gradient elution agent. The invention only single accomplishes the procession of quantitative detection of the primary organic acid in the fruit on the regular high performance liquid chromatography. The method of the invention is advanced, nicety, simple and convenience, the analyzable time can cut within 8min, improning the analytic efficiency greatly. At the same time, the method takes the Carrez reagent as decontaminant of fruit sample, this is the first time using the Carrez reagent to detect fruity organic acid.

The invention discloses a core-shell type gold / mesoporous silicon carbon composite nanometer material, a preparation method and application. The core-shell type gold / mesoporous silicon carbon composite nanometer material is characterized in that a core-shell type nanometer material is synthesized with gold nanometer particles as an inner core and ordered mesoporous structure silicon dioxide surface active agent as a shell, and a core-shell type nanometer material with gold nanometer particles as an inner core and a mesoporous silicon carbon composite structure as a shell is prepared through in-situ carbonization of the surface active agent in the mesoporous silicon dioxide shell. The material has the advantages that the specific surface area is high, the pore volume is high, the material is wrapped by a uniform ordered mesoporous structure silicon carbon shell, and the thickness of the shell is controllable. The nanometer material mainly serves as a matrix of the surface auxiliary laser desorption ionization mass spectrometry, the background interference of a traditional organic matrix within the low-molecular-weight range can be avoided, and the efficient laser desorption ionization of compound to be measured is achieved.

The invention relates to a key functional part of a wave spectrum-energy spectrum combined type X-ray fluorescence spectrometer, in particular to a distribution analysis image acquisition and data processing system for a wave spectrum and energy spectrum combined type X-ray fluorescence spectrometer. According to the system, a surface area of a to-be-tested sample is precisely positioned through an imaging module; the sample is driven to move to an appointed position for energy spectrum full-element distribution analysis and wave spectrum unit element distribution analysis; energy spectrum data and wave spectrum data are combined through a data quantitative and qualitative analysis module, then distribution analysis information of element contents of the to-be-tested area on the surface ofthe sample is obtained, and two-dimensional and three-dimensional data models are established and displayed through a data image processing module. By adopting the system, with the combination of rapid scanning of energy spectrums and fine scanning on key areas through wave spectrums, rapid high-precision positioning analysis on a sample is carried out, the analysis speed is increased, and the analysis sensitivity is improved; with the combination of common analysis and element distribution analysis, and with the combination of wave spectrums and energy spectrums, the application field of WEDXRF spectrographs is widened.

The invention relates to a method for measuring the content of the diboron trioxide in casting powder in the smelting technology, which comprises the following steps of: 1. weighing 0.1-1g of sample accurately to 0.0002g, adding the constant quantity of the hydrochloric acid, the hydrogen nitrate and the hydrofluoric acid, adding 0.5-2.0g of mannitol into a beaker, and heating until that the sample is completely dissolved; 2. respectively preparing at least four parts of working curve standard solution for measuring the content of the diboron trioxide in volumetric flasks by the boron standard solution under the same acid medium; and 3. selecting the analysis spectral line of the boron in the medium on the inductively coupled plasma spectrometer (ICPS), measuring the spectral intensity of the boron in the standard solution and the test solution of the working curve at the same time, and computing an analysis result by a computer by means of autoregression. The method dissolves the sample by mixing the hydrofluoric acid with the other acids, and leads the sample to be complexed with the boron by adding the mannitol to lead the boron not to be volatilized and not to be completely decomposed, thereby being applied to measuring the diboron trioxide in the casting powder with the mass fraction within the range from 0.005% to 20%, and being fast in measuring speed and high in accuracy.

The invention discloses an application of a nitrogen-doped carbon point to analysis of micro-molecular environmental pollutants, and particularly relates to the application taking the nitrogen-doped carbon point (N-CDs) as a matrix of a matrix-assisted laser desorption ionization-time of flight time mass spectrometry (MALDI-TOF MS) to the analysis of the micro-molecular environmental pollutants. By taking the nitrogen-doped carbon point as the matrix, the analysis and detection on the micro-molecular environmental pollutants with the m / z ranging from 150 to 1000 can be efficiently and rapidly realized. Suitable micro-molecule types comprise hydroxyl polycyclic aromatic hydrocarbon, nitryl polycyclic aromatic hydrocarbon, bisphenol compounds, perfluoro-acid environmental pollutants and the like. When the nitrogen-doped carbon point is used as the matrix to detect micro-molecules, background interferences of a traditional organic matrix ion peak can be effectively eliminated; an ionization agent does not need to be added and the requirements on sample treatment are reduced; the nitrogen-doped carbon point has good reproducibility and high salt resistance; and an efficient and rapid detection method is provided for the environmental pollutants and an application range of the carbon point is expanded.

A method for rapidly detecting trace tin in the hull steel by adopting the atomic fluorescence spectrometry relates to the technology field of the special steel detection. Tartaric acid, thiourea and ascorbic acid are adopted as a masking agent so as to successfully eliminate the interference of the elements. The analysis time of one sample requires about 5 hours. The method is suitable for measuring the tin content with a mass fraction of 0.0001%-0.10%, a mark-on recovery rate of 98%-108% and detectability of 0.76ng / ml. The method has the advantages of lower interference, wide analytical range, high stability, high speed, etc., when detecting trace tin in the hull steel.

The invention relates to a method for measuring arsenic in sulfate slag. An aqua regia sample is adopted and the method comprises the following steps of: weighing pure iron equivalent to iron in the sample in quantity, performing matrix matching by adopting iron base, preparing standard solution of a working curve with effectively eliminating the base interference of the iron base, selecting an analysis spectral line of the arsenic in the sulfate slag by using the conventional inductive coupling plasma spectrograph in a control laboratory, measuring the working curve and the spectral intensity of the arsenic in the test solution on the inductive coupling plasma emitting spectrograph, and directly obtaining the analysis result of the sample by automatic regression calculation of a computer. The method solves the problems of fussy operating process of sample dissolution, absorption and color comparison in the conventional method, poor analysis and operation of high content arsenic and lower analysis result.

The invention discloses a method for rapidly measuring the content of calcium fluoride in fluorite by an X-ray fluorescence spectrometer. The method comprises the following steps: accurately weighing 1.5000-2.2000 g of fluorite sample and special fluorescent mixed flux 3.0-3.3 times more than the mass of fluorite sample; mixing uniformly and then placing in a gold-platinum crucible; adding 8 drops of a mold release agent lithium bromide; fusing according to a preset automatic sample fusion program in a high-frequency automatic sample fusion machine, to prepare glass sheets for analysis; placing sample pieces prepared by fusion in a wavelength dispersion type X-ray fluorescence spectrometer; selecting work parameters; using a K alpha line of fluorine as an analytical spectral line; measuring with an instrument; automatically calculating the content of calcium fluoride in the sample. The method provided by the invention overcomes a particle size effect and a mineral effect of the sample, and is easy to operate, short in time consumption, free of pollution brought by chemical reagents, wide in analysis range, high in accuracy, good in reproducibility, and suitable for measurement of various fluorite components, in particular measurement of calcium fluoride in fluorite ore with high content of calcium carbonate and calcium sulfate.

The invention discloses a detection line intelligent sampling and transporting device for water quality monitoring and a sampling and transporting method thereof. The device comprises a driving assembly; a water storage assembly, which comprises a plurality of water storage tanks which are sequentially fixed under a driving box from top to bottom, and water inlets which are formed in the water storage tanks and deviate from a propeller; and a sampling assembly, which comprises pipelines, clamping bases, control assemblies and opening and closing assemblies, wherein one ends of the pipelines are hermetically connected to the water inlets, the clamping bases are fixed at the other ends of the pipelines, the control assemblies are arranged in the clamping bases, and the opening and closing assemblies are in transmission connection to the control assemblies. The water storage tanks capable of automatically collecting water samples and storing the water samples are arranged at the bottom ofthe propeller, and the water storage tanks can collect and store the water quality of different areas respectively under the driving of the propeller, so that mutual influence and interference are avoided, water does not need to be manually collected back and forth, and the collection efficiency is high.

The invention provides a time-resolved fluorescence immunoassay method of Lp-PLA2. The double antibody sandwich method and the time-resolved fluorescence immunoassay method are used together to measure the content of Lp-PLA2. The time-resolved fluorescence immunoassay method comprises the following steps: adding an Lp-PLA2 standard substance or a centrifuged blood serum sample into respective micropores in a microporous plate coated with an Lp-PLA2 resistant monoclonal antibody A; after oscillatory reaction, washing with a concentrated cleaning solution, then adding a biotin labeled Lp-PLA2 resistant monoclonal antibody B; after oscillatory reaction, washing with the concentrated cleaning solution; adding lanthanide labeled streptavidin, and washing with the concentrated cleaning solution after oscillatory reaction; after adding an enhancement solution and oscillating, performing fluorescence emitting under excitation of ultraviolet light, testing the fluorescence strength cps with a time-resolved fluorescence spectrometer, and determining the content of LP-PLA2 in a sample to be tested in comparison with a standard curve. The time-resolved fluorescence immunoassay method can quantitatively test the content of Lp-PLA2 in the sample, and has the characteristics of high sensitivity, wide analysis range, good stability, quick detection and easy automation.

The invention discloses a method for analyzing selenium content in crude selenium. The method comprises the following steps: dissolving sample acid, filtering, separating interference of acid-insoluble elements, reducing by using hydrazine hydrate, filtering, separating partial interference elements, precipitating, further dissolving in acid, testing tellurium by using a spectrograph, eliminating main interference elements, testing the selenium content of the filtrate by using the spectrograph, and modifying the analysis result. According to the method, a classical weight method is adopted for measurement, main interference elements are eliminated, loss of selenium in the filtrate is compensated, the result of the method is accurate and reliable, the analysis range is wide, not only is the crude selenium tested, but also pure selenium with the selenium content less than 99.9% can be tested, and great popularization values are achieved.

The embodiments of the invention provide a network operation capability analysis method and device. The method comprises the steps of storing history resource data of each analysis index of target network operation capability to an HBase database in a slice mode, wherein the history resource data is collected according to a preset period; taking the history resource data of each analysis index ineach period as a piece of slice data; in the HBase database, dumping the slice data of each analysis index, and defining analysis dimensions of the slice data; and comparing and analyzing two pieces of slice data based on an RDD (Resilient Distributed Datesets) in a Spark platform, according to the analysis dimensions of the two pieces of slice data in any analysis index selected by a user, and obtaining an analysis result of the analysis index to which the two pieces of slice data belong. According to the embodiments of the invention, an analysis range is wide, computing efficiency is high, dynamic analysis can be carried out on the resource data of the network operation capability, and analysis speed and precision of the network operation capability are improved.

The invention discloses a financial risk assessment method, relates to the technical field of financial risk assessment, and mainly aims to solve the problems of low efficiency and large error of existing financial risk assessment. The method comprises the following steps: reading a service attribute of a user account according to the user account in an evaluation request; Reading financial data of the user account according to the user account in the evaluation request, and carrying out data auditing on the financial data; Performing commercial value analysis on the financial data; Performingbusiness risk analysis on the financial data; And assessing the financial risk according to the commercial value analysis data and the commercial risk analysis data. Through commercial value analysisand commercial risk analysis, financial risks are evaluated comprehensively, financial risk evaluation data are obtained, manual recording and analysis are not needed, the financial risk evaluation efficiency is high, the analysis range is wide, and the financial risk evaluation effect is good.

The invention provides an internet payment security automatic denial system, and relates to the field of internet payment security. According to the internet payment security automatic denial system, after a transaction between a buyer and a seller begins, risk assessment is carried out, and whether the transaction is ended or not is judged by calling account data in a risk value mode. In the risk assessment, account information, exchange transactions, exchange transactions, time and places are integrally analyzed and judged, the risk degree of the transactions is determined, and the safety of user transactions is ensured.

The utility model discloses a high efficiency liquid phase chromatogram method which can detect the content of various polyphenolic compounds inside fruits at the same time by adopting liquid phase chromatogram containing ultraviolet detector and reversed-phase bonded silica chromatographic column; organic solvent mobile phase A and acidic aqueous mobile phase B with certain Ph value are adopted as gradient eluant. The utility model quantitatively detects various polyphenolic compounds inside fruits at the same time only on normal high efficiency liquid phase chromatogram. The utility model builds a method of detecting the content of various polyphenolic compounds inside fruits which combines microwave extraction and high efficiency liquid phase chromatogram. The utility model has the advantages of advanced and accurate method, simple and quick sample processing; meanwhile, Carrez reagent is used as scavenging agent of fruits sample and is firstly used as fruit polyphenols testing.

The embodiment of the present invention discloses an emotion recognition method, device, and storage medium, wherein the method includes: acquiring voice data; converting the voice data into corresponding text content, and performing compliance analysis on the text content , obtaining a first analysis result; extracting acoustic feature parameters from the speech data, analyzing the acoustic feature parameters, and obtaining a second analysis result; performing emotion recognition based on the first analysis result and the second analysis result .

The invention discloses a method for rapidly measuring the content of calcium fluoride in fluorite by an X-ray fluorescence spectrometer. The method comprises the following steps: accurately weighing 1.5000-2.2000 g of fluorite sample and special fluorescent mixed flux 3.0-3.3 times more than the mass of fluorite sample; mixing uniformly and then placing in a gold-platinum crucible; adding 8 drops of a mold release agent lithium bromide; fusing according to a preset automatic sample fusion program in a high-frequency automatic sample fusion machine, to prepare glass sheets for analysis; placing sample pieces prepared by fusion in a wavelength dispersion type X-ray fluorescence spectrometer; selecting work parameters; using a K alpha line of fluorine as an analytical spectral line; measuring with an instrument; automatically calculating the content of calcium fluoride in the sample. The method provided by the invention overcomes a particle size effect and a mineral effect of the sample, and is easy to operate, short in time consumption, free of pollution brought by chemical reagents, wide in analysis range, high in accuracy, good in reproducibility, and suitable for measurement of various fluorite components, in particular measurement of calcium fluoride in fluorite ore with high content of calcium carbonate and calcium sulfate.

The invention relates to a method for analyzing protein contents, and specifically discloses a method for analyzing a protein content in flavored yogurt subjected to pasteurization heat treatment. Theanalysis method at least comprises the following steps: (1) configuring the yogurt to be analyzed into different standard solutions, and detecting the standard solutions by using a Kjeldahl apparatus; after preprocessing the standard solutions separately, detecting the standard solutions by using the Kjeldahl apparatus and a milk composition analyzer in sequence, and calibrating the results to obtain a standard curve; (2) preprocessing the yogurt to be analyzed, and detecting the yogurt to be analyzed by using the milk composition analyzer to obtain a detection result; and (3) comparing the detection result in the step (1) with the standard curve in the step (2) to obtain the protein content. The detection method provided by the invention has the advantages of wide test range, simple andconvenient operation, efficient and precise test, good repeatability, etc.

The embodiment of the invention provides a malicious order identification method and device and an electronic device. The method comprises the steps of obtaining data of a to-be-identified order behavior; and analyzing the data of the to-be-identified order behavior through utilization of an analysis model and obtaining a malicious score of the to-be-identified order behavior, wherein the analysis model is obtained by carrying out model training according to the data of a preset order behavior; and judging whether the to-be-identified order behavior is a malicious order behavior or not according to the malicious score. Through application of the embodiment of the invention, the data of the to-be-identified order behavior is analyzed through utilization of the analysis model, so a malicious order identification success rate can be improved, and a malicious order identification range can be expanded.

The invention provides a liquid chromatography tandem mass spectrometry detection method for measuring a phthalates plasticizer in an aquatic processing product, and belongs to the technical field ofproduct safety and detection. The method comprises the following steps: extracting the phthalates plasticizer in the aquatic processing product through the matching of an extraction agent and a dispersing agent; after purifying and eluting a sample solution obtained by extracting, detecting the sample solution by using an ultra-high performance liquid chromatography tandem mass spectrometry; and the dispersing agent is tetrabutylammonium chloride and 4-hexylresorcinol. According to the liquid chromatography tandem mass spectrometry detection method for measuring the phthalates plasticizer in the aquatic processing product provided by the invention, a pretreatment process is high in target selectivity and enrichment factor and good in operation repeatability, small in solvent dosage, strongin purification effect, wide in linear range of a measurement result, high in accuracy, high in target ion determination specificity and sensitivity, high in sample purity and stability, small in matrix interference, strong in practicability, and has the application of detecting the phthalates plasticizer in the aquatic processing product.

The invention discloses a determining method for trace silicon in cobaltosic oxide. After a cobaltosic oxide sample is subjected to microwave digestion, an internal standard method is adopted for calibrating matrix interference, and an inductive coupling plasma emission spectrometer is used for determining the content of silicon in the determined sample. A test proves that the treatment for the sample according to the determining method provided by the invention only costs about 1 hour, the determining time is greatly shortened, the working efficiency is increased, the accuracy of determined silicon content result is high, the precision is excellent, the determination for trace silicon in cobaltosic oxide can be met and the determining method has the characteristics of low analysis cost, accuracy and practicality.

The invention discloses the application of nitrogen-doped carbon dots in the analysis of small molecular environmental pollutants, specifically a nitrogen-doped carbon dots (N-CDs) as a matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS ) matrix to detect small molecule environmental pollutants. Using nitrogen-doped carbon dots as a substrate can efficiently and quickly realize the analysis and detection of small molecule environmental pollutants with m / z ranging from 150 to 1000. Suitable small molecule types include hydroxy polycyclic aromatic hydrocarbons, nitro polycyclic aromatic hydrocarbons, bisphenol compounds, perfluorinated acid environmental pollutants, etc. Using nitrogen-doped carbon dots as a matrix to detect small molecules can effectively eliminate the background interference of traditional organic matrix ion peaks, without adding ionizing agents, reducing the requirements for sample processing, and has good reproducibility and high salt tolerance It provides an efficient and rapid detection method for environmental pollutants, and expands the application range of carbon dots.

The invention belongs to the technical field of electron microscope sample collection and detection, and discloses an atmospheric particulate collection system and method for an electron microscope. The system comprises a laser emission module, a photoelectric detection module, a data processing module, and a central control module; a laser particulate matter sensor is provided with a shell; an MCU microprocessor is arranged in the shell; the output end of the MCU microprocessor is connected with a laser through a laser control circuit; the input end of the MCU microprocessor is connected with a photoelectric detector through an amplifying circuit; and the output end of the MCU microprocessor is connected with a data output interface and connected with a fan through a control circuit. The laser emits laser, and the laser irradiates suspended particles in the air to generate light scattering; the photoelectric detector collects scattered light intensity within a certain angle range, linearly converts the obtained scattered light intensity into voltage and transmits the voltage to a data processing system module; and the data processing module performs data processing through a data processing program to obtain the equivalent particle size of the particles and the number of the particles with different particle sizes in unit volume.

The invention belongs to the technical field of drug detection, in particular to a method for simultaneously detecting 12 kinds of alkaline drugs in hair. The method for simultaneously analyzing 12 kinds of psychoactive drugs in hair is simple, rapid and has a wide analysis range. Compared with the existing methods, the present invention saves the liquid-liquid extraction process in the sample pretreatment, and the whole process can be completed within 1 hour without increasing the time; on the contrary, when multiple samples are analyzed, it shows high-throughput Advantage. The technical solution provided by the invention can realize external pollution detection and real-time quantitative analysis of actual cases, and is convenient for data accumulation of positive cases. Therefore, the method for simultaneously detecting 12 kinds of basic drugs in hair of the present invention has excellent selectivity, linear correlation, precision and accuracy, and at the same time, the LOD and LOQ are low enough, so that it can successfully be used for inferring the source of drugs and correctly distinguishing them. It provides technical support for illegal abuse and clinical drug use, and has considerable market potential.

The invention discloses an infrared spectroscopy method for measuring a content of polyvinyl chloride in a polyvinyl chloride pipe. The method comprises the following steps: (1) establishing a standard curve: mixing PVC and an internal standard substance according to different mass ratios, selecting at least five proportions for combination, then dissolving in a mixed solvent, respectively coating a potassium bromide sheet special for an infrared spectrometer with the solution, and measuring absorbance (A); calculating the absorbance of the internal standard substance and PVC in a specified wave number range by using integral software, calculating a ratio (A internal standard / APVC), and establishing a working curve by using the A internal standard / APVC and the mass ratio m internal standard / mPVC; and (2) detecting the actual sample: dissolving the actual sample and the internal standard substance in a mixed solvent, and determining the A internal standard substance / APVC by using a method same as that when the working curve is established; and substituting into the working curve to obtain m internal standard / m PVC, and thus obtaining the PVC content in the sample. By adding the internal standard substance, the mass fraction of PVC in the sample is quantitatively determined, the analysis range is wide, dependence on other components in the formula is avoided, the anti-interference capability is high, and the detection is rapid and efficient.

The invention relates to a hyperspectral imaging technology, and discloses an MEMS-based hyperspectral system and spectrograph, the MEMS-based hyperspectral system comprises a light source (121), a light beam processing unit and MEMS scanning micromirrors (151), and the MEMS scanning micromirrors (151) are array type scanning micromirrors; light beams (142) of the light source (121), which are processed by the light beam processing unit, enter the MEMS scanning micromirror (151), and the light beams (142) are sequentially reflected by the MEMS scanning micromirror (151) as required; the interference system (160) comprises an MEMS translation micro-mirror (163), a light beam (142) reflected by the MEMS scanning micro-mirror (151) enters the MEMS translation micro-mirror (163), and the MEMS translation micro-mirror (163) modulates and reflects the light beam (142); the spectrometer designed by the invention is small in size, high in resolution, good in stability and low in cost.

A method based on microblogs for analyzing audience rating situations of television programs comprises the following steps of (1) establishing a word bank, (2) establishing a microblog-television program map, (3) carrying out data analysis, and (4) revealing visual results, wherein analyzed results of the step (3) is revealed through a report form and a graphic form. The method based on the microblogs for analyzing the audience rating situations of the television programs has the advantages of being wide in analyzing range, comprehensive in analyzing content, flexible in analyzing process, and high in analyzing efficiency.